Privacy Policy

Last updated: May 2, 2026

Overview

Noctune is a sleep and focus soundscape app. Your privacy is important to us. This policy explains what data Noctune collects and how it is used.

Data We Collect

Noctune collects no personal data. We do not require an account, email address, or any personally identifiable information to use the app.

Local Storage

Your preferences — sound mixes, favorites, and settings — are stored locally on your device using AsyncStorage. This data never leaves your device.

HealthKit

If you grant permission, Noctune reads sleep data from Apple HealthKit to show sleep insights. This data is read-only, processed on your device, and is never transmitted to any server.

In-App Purchases

Purchases are processed by Apple (App Store) or Google (Google Play). Noctune does not receive or store your payment information. Purchase receipts are validated by RevenueCat, our entitlement management provider, using an anonymous app user ID. No personal information is shared with RevenueCat.

Analytics & Tracking

Noctune does not include behavioral analytics SDKs, tracking pixels, or advertising services. We do not track your usage patterns, behavior, or location. RevenueCat collects anonymous, aggregated purchase analytics (revenue, subscription status) to help us understand product performance. No personal data is involved.

Third-Party Services

Noctune uses one third-party service:

• RevenueCat — in-app purchase receipt validation and entitlement management. RevenueCat receives an anonymous device identifier and purchase receipts. See RevenueCat's privacy policy.

The app functions entirely offline after download, except for purchase validation.

Data Retention & Deletion

Because Noctune does not collect personal data, there is no user account or server-side profile to delete. Here is exactly how each category of data is retained and how you can remove it:

• On-device data (sound mixes, favorites, presets, settings) — stored locally on your device for as long as the app is installed. To delete: uninstall the app, or clear the app's storage from your device settings (iOS: delete the app; Android: Settings → Apps → Noctune → Storage → Clear data). This permanently removes all local data.
• HealthKit sleep data (iOS only) — never stored by Noctune. We read it from Apple Health on demand and discard it when you close the app. To revoke access: iOS Settings → Health → Data Access & Devices → Noctune → Turn Off All.
• Purchase records held by RevenueCat — retained by RevenueCat for the lifetime of your purchase entitlement plus a reasonable period for tax, accounting, and fraud-prevention purposes (typically up to 7 years, per RevenueCat's policy). These records contain only an anonymous app user ID and receipt data — no name, email, or payment details. To request deletion of your RevenueCat purchase record, email privacy@noctune.org from any address and we will submit a deletion request to RevenueCat on your behalf within 30 days. You may also contact RevenueCat directly via their privacy policy.
• Purchase records held by Apple or Google — managed by the platform you bought through. To request deletion, use Apple's or Google's privacy controls in your account settings. Noctune has no access to these records.

You can email privacy@noctune.org at any time to request deletion of any data associated with your use of Noctune. We will respond within 30 days.

Children's Privacy

Noctune does not knowingly collect data from children. Since we collect no personal data from any user, no special provisions are needed.

Changes to This Policy

If we update this policy, the changes will be posted on this page with an updated date.

Contact

Questions? Reach us at privacy@noctune.org.